Electrical stove.



G. A. HUGHES.

ELECTRICAL STOVE.

AFPLHIATlON FILED APR. 14, 1915.

Patented Feb. 1, 1916.

z'suans-suzn 2.

spection and repairs may qllll'ilillf. 20-

UNITED STATES PATENT OFFICE.

GEORGE A. HUGHES, OF CHICAGO, ILLINOIS, ASSIGHOR TC) HUGHES ELETRIC HEATING COMPANY, OF CHICAGO, ILLINQIS, A GORPORATION OF ILLINOIS.

ELESTRIGAL E.

Application filed April lei 1925 Z '0 all whom it may concern:

Be it known that I, Gnonon A. Hronss, a citizen of the United States, and a, resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electrical Stoves of which the following is a specificaihm.

My invention relates to electrical stoves and particularly to stoves of toy size which can be used with safety and efliciency by children and even older persons for cook ing, baking, heating, etc.

Among the important objects of the invention are to produce a simple, light, inexpensive and durable stove of sheet metal stampings; to arrange for readily :isserrr bling the stampings to form the stove and to readily disconnect them in order that inhe made; to provide improved conductor arrangement which will efficiently supply neat to the oven and to the stove top fiptlllii bi and in general to provide a neat, useful and in expensive stove of small which can e used with safet by children and which will bake and cook as efiiciently an rdinary full-sized stove.

The various features of my clearly illustrated on the accompanying drawings in Which- Figure 1 is a front ele ational visor oi the stove with parts broken a ay to more clearly show the interior arrangement and construction; Fig. 2 is a top view with parts removed and broken away; Fig. 3 is a plan view of the front wall of the stove and the oven and heating mechanism suppm'ted therefrom, and Fig. 4 is a sectional view on plane 4-4, Fig. 2.

In the stove shown a piece of sheet metal is bent to form the sides and 6 and the rear wall 7. Another piece of sheet metal is bent to form the base 8 with the downwardly extending peripheral flanges 9. ll lower end of the sides 5 and 6 and the w 7 7 being turned, upwardly as ind cat d at if? to receive'the flange Q on the la-ttczn. For reasons which will appear later, the from wall 11 is made detachable and to this eml ll} lower edge is truned upwardly to form tongue or hook 12 for receiving the front flange 9 extending from the lJOiiTOl'il l h" s. 1 and 4), such engagement securely both the front, wall in place at its lower end. Av; its sides the front wall has the rearwardiy Specification of letters tent.

Patented Feb; 1 1%)16.

Serial No: 521,204,

extending flanges 13 and ll far? engaging with the fronts of the side nails 5 and i. All the {on of the front wall the forwardly extending lmrimniul flange l5 \vlz i. when the front in applied, lies in the 1mm plane n similar top flanges i and side walls I and 13 and the flange or i g for receiving rivets or bolts 25 h n1; of Wiiioll the top, hot plate, and to flanges may be se u ed. CU GillCK. Thus vmen the front n lS lnmkcd up at its hum thifjti a 12st the bottom flange 9 .iiz-l the tool are applied, the front will Be securely locked in place and all the parts will he e erely held in ther and readily :wg'uai he in; removing t; bulls The canopy esn he at the ordinary construction in msing the top 2th the sides 21' and 28 and. the/hack 25k and in order to secure the canopy in place the lower ends of its side Willi: are turned in to form flanges 30 and Ill and these thie es are provided, with suitable penings {not shown) for registering with openings 5 tinni the top :20 in order that bolts Jr may he inserted to secure the canopy in place over the hack part of the top, Tia bolt 23? can of course also extend thrw' 1L regietrring openings in the l the top flanges 1e and 17.

corners v the stove body suite raided unit are cured in suitable manner, Where but. are used th var ous parts of the stove 1e o e ran he more read ,ompact shipping on or repairs, but it is evi- :I wing in the various he 'gurrmanentiy secured number these sections real downwru'di a min in Fig. 1, hhe w ll jil ifiil'ii lf, he do light from the incumloercni. ii-ire; reflected through the ore HPPIHHQH. In or der to give the slow: own: thr of the culinary sized Hows 1L whirl: ii: viduul hunting: I; is sir-c est in the store n Mi e. opening scctione rd v.1. to leave the nd through these parfrom the heating element will shine and ll grim the same appearance us though in-rliriduul heating elements were use/l 'llll their parallel incandescent conductor sections. This barred arrangcmerit of the op nings will also afford safety in preventing amridcntul contact with or tampering uith the heating conductors and circuits within the stove. The top plate 20 could of course be omitted and the plate 19 would then form the top of the stove but preferably both are the hot plate being of heavier material in order to in storing and distril'mting heat and the top being more orminientul and usually nickel-- plated on top to give a neuter appearance to the stove.

The front wall ll has the rectangular opening 39 the soctions of metal adjacent which turned inwardly to form flanges 4 Theee flange; are received in the open end of a rectangular box 41 built up of sheet metal and having the lateral flanges 42 around it.--' entrance for engaging against the back of the wall 11. This box 41 forms the oven to which ucc had through, the opening 39 in the wall ll and the oven structure is securely supported from the wall ll preferably by welding tlung et to the wall 11 and by welding the thing, 40 to the oven structure sides. The o 'iening 39 is adapted to he closed by {1 Suitable door 43 which is hinged along its lower edge to the wall 11 as indicated at 44.. A suitable wring catch 45 serves to hold the door in closed position,

The conductors for trui'iS-luting electrical energy into heat are all mounted on the oven structure. As shown. the lower Wall of the oven structure is extended laterally u dis tunce to form a supporting hell' ll)- for the terminuk 4? and those terminals bring adapted for connection with the supply ciir-zi 49 which in shown loading through a Suit able insulating huihing 10 secured in the r ur Wall 7. (Miincrtc l with the terminals is the residence :mn iuclcr and this conilurtor may he :irrunfwl in on do ned munncr to give the ll('(' l iunouni of resist liillit. A: ehown it extend; only along the top and ei l -s of tho oven stru ture. and this i pcrhups the lll sk desirable urrurigwnent as the men is h ated from th tog: which is liQFt for baking purposes. and the stow lop hmtwl from mnlcri'iezitli. hunt rudi'iting directly upivurrlly through the elite. in th hot plate and against the cooking uh F et over the openings. and some of the heat ii cornered to the hot plate and conducted llvl("fl'(illl to the utensils. 0n the stove .-tructure I provide busl'iing holders such llrl are described and claimed in my co-pendlug application Serial No. 9886, filed F ebruary 23, 1915. TliBSC bushing holders are each formed by bending and folding a piece of sheet metal along its middle line to bring the sides a and I) together, the sheet metal being first perforated and deflected about the perforations to form pockets after the folding oncrution and in which pockets suitable .inhulating bushings d are confined. The ends of the sides a, and b are deflected outwardly to form seating flanges e and f which are secured to the oven structure wall preferably by welding. As shown, the frames are secured to the sides, top and top corners of the oven structure with their bushings in ulineinent and the conductor 51 passes from one terminal hack and forth through the bushing rows to the other terminal to be thus in series with the current supply circuit. More terminals could of course he provided and the heating conductor separated into heat controlling sections, which by suitable switch mechanisms could be connected in. various combinations with the supply circuit to give the desired amount of heat. However. to make the stove safer for children, the heating conductor is preferahly in series with the supply circuit which is in the form of a cord 49 provided at its end with {in ordinary socket which can be screwed into a convenient fixture/ In order to insure insulation of the bends of the heating comhuctor, these bonds are passed through ineuhiting bushingev 53, these bushh -w yin-renting contact of the conductor with the sheet metal supports.

The etoi e etructure l is re described above very simple and compact but verystrong and light, no castings being required as all the parts can be readily stamped and formed up from sheet metal by fumpl die operations. The oven structure being supported on the front Wall ii which is readily detaclm'nle. the heating conductor can be very l'(kll'lll applied thereon and at any time, by merely lo "1g the bolts, the front wall with the oven .itructure can he removed and impaction and repairs can quickly be made. The heat very uniformly and efficiently llFilll'HltQ-Ji. the oven receiving heat from the top, which beet for baking. and the heat also uwiing upwardly to the hot plate and through the slits to the cooking utensils, and very little heat in Wasted. In order to cli'nct further heat insulation the stove body may be lined, by Suitnhle heat insulating rnnteriul 54 such asbestos. As before tuted. the slitted sections of the hot plate are depressed and this is mainly for the pur- 55 for closing ofi the stove openings as desired. I do not of course desire to be limited to the exact construction and arrangement shown and described as modifications are no doubt possible which would still come within the scope of the invention, and

I claim as follows 1. 'In an electrical stove, the combination of a body comprising front, rear, side and bottom walls, the front wall having an opening, an oven structure secured to the front 'wall and extending into the body and having'an inlet ,in registration with said frontwall opening, a'door on the front wall for closing the oven structure, a plate mounted on the tops of said walls and having circular utensil sections, said sections being perforated for the passage of light and' heat,;and are'sistance conductor within said body mounted on the oven structure and adapted for connection with a current supply circuit, the heat from said resistance conductor passing through'the walls of the oven structure to the interior thereof and passing upwardly through said utensil sec tion perforations.

2. In an electrical stove, the combination of a stove body comprising side, rear and bottom walls, a downwardly extending flange formed at the front of said bottom, a front wall having an upwardly directed tongue at its. bottom for hooking around said flange for securing the bottom of said front wall to the bottom, and a top for said stove adapted to be secured to the front wall to hold. the top thereof in place.

3. In an electrical sto've, the combination of a rectangular body having utensil open- I ings in its top, an oven structure withinthe body accessible 'from the exterior-rot the body, and uncovered heating conductors at the outside of the oven structure for heating the interior thereof, there being considerable air space between said oven structure and the stove body for circulation whereby part of the heat generated by said heating conductors will be carried through said utensil openings. 4

4. In an electrical stove, the combination of a rectangular sheet metal body having utensil openings in its top,"a sheet metal oven structure within the body and accessible from the exterior thereof, electrical heating conductors surrounding said oven structure ad spaced therefro mand from the utensil openings to apportion the'generated heat between said oven and said openings. x I

5. In an electrical stove, the combination of a rectangular sheet metal body having utensil openings at its top and an opening in one of its sides, a rectangular sheet metal oven structure within the body having an open side communicating with said body side opening, said oven structure being considerably smaller than the body'in order to leave considerable intervening air space, and uncovered resistance conductors mounted on the outside of said oven structure, said conductors being I spaced from the oven walls and from said utensil openings to apportion the generated heat between them 6. In an electrical stove, the combination of a body having; utensil openings in its top, an oven structure within the body, and

a common electrical heating element at the outside of said oven for supplying heat'to 

